Adsorptive Properties of Mn-Substituted Goethite Particles for Aqueous Solutions of Lead, Copper, and Zinc

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  • Kusuyama Takahiro
    Department of Environmental and Civil Engineering, Faculty of Engineering, Nagaoka University of Technology
  • Tanimura Ko
    Department of Environmental and Civil Engineering, Faculty of Engineering, Nagaoka University of Technology
  • Sato Kazunori
    Department of Environmental and Civil Engineering, Faculty of Engineering, Nagaoka University of Technology

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Abstract

The substitution of Mn for Fe in the goethite (α-FeOOH) framework and the excess addition of Mn beyond the solid-solubility limit, approximately 1.5 mol%Mn, contribute to the change of adsorptive properties for metal ions, PbII, CuII, and ZnII, in aqueous solutions. Removal of PbII from the metal solution at pH 4 was enhanced by the excess addition of Mn in the synthetic process for Mn-substituted goethite. This enhancement was caused by the formation of a new composite adsorbent, α-(Fe, Mn)OOH particles with (Fe, Mn)3O4 precipitates on their surfaces.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 43 (3), 455-458, 2002

    The Japan Institute of Metals and Materials

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